In the experiment "Molar mass of volatile liquid", the pressure of the gas inside a flask was the same as atmosphere, and the temperature was identical to the boiling water temperature of water bath. How đid you measure the volume of the gas inside the flask? Read the volume written on the flask. Fill the flask up to the brim with water and then transfer the water to a graduated cylinder. Measure the volume of the liquid added to the flask before heating the sample. Measure the volume of the liquid that condenses in the flask after cooling the sample. O O

In the experiment "Molar mass of volatile liquid", the pressure of the gas inside a flask was the same as atmosphere, and the temperature was identical to the boiling water temperature of water bath. How đid you measure the volume of the gas inside the flask? Read the volume written on the flask. Fill the flask up to the brim with water and then transfer the water to a graduated cylinder. Measure the volume of the liquid added to the flask before heating the sample. Measure the volume of the liquid that condenses in the flask after cooling the sample. O O

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A substance containing only carbon and hydrogen is analyzed and found to contain 85.7% carbon by mass. A gaseous sample of the substance is found to have a density of 1.87 g/L at STP. a)What is the molar mass of the compound? b)What are the empirical and molecular formulas of the compound? c)What are two possible Lewis structures for molecules of the compound. Hint: In one of the structures C atoms can form a ring (all C atoms are connected to each other)
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Listen What is the partial pressure of water vapor in an air sample when the total pressure is 0.90 atm, the partial pressure of nitrogen is 0.60 atm, and the partial pressure of oxygen is 0.18 atm, and the partial pressure of all other gases in the air is 0.0049? Answer to 2 decimal places. Your Answer: Answer units
16
A gas tank containing an air mixture of helium, nitrogen and oxygen has a total pressure of 45.0 psi. Answer the following questions given that the partial pressures of helium and nitrogen in the mixture are 7.50 psi and 13.5 psi, respectively, and there are a total of 6.75 moles of gas mixture in the tank. Report all answers to 3 significant figures. a) What is the partial pressure of oxygen? b) Calculate the moles of oxygen in the tank. c) Calculate the moles of nitrogen in the tank. d) Calculate the moles of helium in the tank.